Драйверы систем светодиодного освещения IRS25401SPBF

Драйвер светодиода , понижающий, ШИМ затемнение, 8В-16.6В вход, 500кГц, 16.6В/700мА выход, SOIC-8

The IRS25401SPBF is a high voltage high frequency buck control IC for constant LED current regulation. It incorporates a continuous mode time-delayed hysteretic buck regulator to directly control the average load current, using an accurate on-chip band-gap voltage reference. This part directly replaces the IRS2540 and IRS2541 with improved latch-up immunity. The application is inherently protected against short circuit conditions, with the ability to easily add open-circuit protection. An external high-side bootstrap circuit drives the buck switching element at high frequencies. A low-side driver is also provided for synchronous rectifier designs.

• Auto restart, non-latched shutdown
• PWM dimming
• ±2% Voltage reference
• 140ns Dead-time
• 15.6V Zener clamp on VCC
• Up to 500kHz frequency
• <500µA Micropower start-up

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Светодиодное Освещение